Ruins in New York State

Home to the abandoned Tioronda Hat Works Factory, this park is a combination of woodlands and marshlands.

The graphite created here was used in the manufacturing of pencils.

This secluded ruin was once a home for exotic plants.

This preserved wilderness hides the remains of a colonial grain mill used to feed George Washington's troops.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

The remains of what was once the world's steepest passenger funicular.

An abandoned asylum where patients have been forgotten but their possessions remain.

All that remains of a magnate's dream home is a historic gate and an abandoned public pool.

This abandoned factory on the Hudson River once churned out a million bricks a week.

The remains of the furnace and iron works that produced the massive Hudson River Chain still stand in the woods of New York.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Once America's longest-manned military fort, now an abandoned hulk.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.